Green chemical approaches and tools in the development of environmentally friendly synthetic methods

Abstract

Addressing the recommendations of the 12 basic lows of green chemistry, the microwave technique was utilized in phosphaMannich, Diels-Alder and inverse Wittig type reactions, moreover under solventless conditions. In the phase transfer catalysed alkylation of CH-acidic compounds, the quaternary onium salts could be substituted by MW irradiation. The effect of chiral phase transfer catalysts was compared on suitable, potentially enantioselective model reactions. Mono-and bidental P-ligands were developed to make available novel platinum complexes that can be useful as catalysts. Finally, esterifications including diesterifications were studied by in situ Fourier Transform IR spectroscopy.Keywords green chemistry · microwave · phase transfer catalysis · Pligands · transition metal complexes · in situ FTIR Acknowledgement

Recent advances in green cationic polymerization

“…To address this, the introduction of the concept of green chemistry calls for exploring preparation processes that cause less harm to the environment while improving product performance and reducing economic costs. 23,24 As a result, many scientific researchers have responded positively to the development trend of green chemistry, particularly in the field of cationic polymerization. They have made significant efforts in developing new initiation systems, reaction media, polymerization processes, and reaction monomers for green controllable cationic polymerization.…”

“…The rapid development of various frontier fields presents a significant challenge in pursuing green emission reduction effects for different technologies used in actual production. To address this, the introduction of the concept of green chemistry calls for exploring preparation processes that cause less harm to the environment while improving product performance and reducing economic costs 23,24 . As a result, many scientific researchers have responded positively to the development trend of green chemistry, particularly in the field of cationic polymerization.…”

The Impact of Microwaves on Organophosphorus Chemistry

“…Organophosphorus compounds including P ‐heterocycles may find applications in synthetic organic chemistry as reactants, solvents (ionic liquids), catalysts, P ‐ligands in complexes, and due to their biological activity also as drugs and plant protecting agents . The utilization of MW irradiation in organophosphorus chemistry is a relatively new field …”

UV-Induced Crosslinking of Poly[2-(2’-Norbornenyl)-2-Oxazoline]s

“…Polymerizations were performed in a microwave reactor dedicatedly designed for chemical syntheses, approaching the concept of green chemistry associated with this heating technique [9]. The first attempts to synthesize linear pNbOx with methyl tosylate as initiator failed: An insoluble precipitate was obtained from a polymerization mixture with a targeted polymerization degree of 100.…”